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20#ifndef MICROBLAZE_CPU_H
21#define MICROBLAZE_CPU_H
22
23#include "qemu-common.h"
24#include "cpu-qom.h"
25
26#define TARGET_LONG_BITS 32
27
28#define CPUArchState struct CPUMBState
29
30#include "exec/cpu-defs.h"
31#include "fpu/softfloat.h"
32struct CPUMBState;
33typedef struct CPUMBState CPUMBState;
34#if !defined(CONFIG_USER_ONLY)
35#include "mmu.h"
36#endif
37
38#define EXCP_MMU 1
39#define EXCP_IRQ 2
40#define EXCP_BREAK 3
41#define EXCP_HW_BREAK 4
42#define EXCP_HW_EXCP 5
43
44
45#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3
46
47
48#define MB_CPU_IRQ 0
49#define MB_CPU_FIR 1
50
51
52#define R_SP 1
53#define SR_PC 0
54#define SR_MSR 1
55#define SR_EAR 3
56#define SR_ESR 5
57#define SR_FSR 7
58#define SR_BTR 0xb
59#define SR_EDR 0xd
60
61
62#define MSR_BE (1<<0)
63#define MSR_IE (1<<1)
64#define MSR_C (1<<2)
65#define MSR_BIP (1<<3)
66#define MSR_FSL (1<<4)
67#define MSR_ICE (1<<5)
68#define MSR_DZ (1<<6)
69#define MSR_DCE (1<<7)
70#define MSR_EE (1<<8)
71#define MSR_EIP (1<<9)
72#define MSR_PVR (1<<10)
73#define MSR_CC (1<<31)
74
75
76#define MSR_UM (1<<11)
77#define MSR_UMS (1<<12)
78#define MSR_VM (1<<13)
79#define MSR_VMS (1<<14)
80
81#define MSR_KERNEL MSR_EE|MSR_VM
82
83#define MSR_KERNEL_VMS MSR_EE|MSR_VMS
84
85
86
87#define ESR_DIZ (1<<11)
88#define ESR_S (1<<10)
89
90#define ESR_ESS_FSL_OFFSET 5
91
92#define ESR_EC_FSL 0
93#define ESR_EC_UNALIGNED_DATA 1
94#define ESR_EC_ILLEGAL_OP 2
95#define ESR_EC_INSN_BUS 3
96#define ESR_EC_DATA_BUS 4
97#define ESR_EC_DIVZERO 5
98#define ESR_EC_FPU 6
99#define ESR_EC_PRIVINSN 7
100#define ESR_EC_STACKPROT 7
101#define ESR_EC_DATA_STORAGE 8
102#define ESR_EC_INSN_STORAGE 9
103#define ESR_EC_DATA_TLB 10
104#define ESR_EC_INSN_TLB 11
105#define ESR_EC_MASK 31
106
107
108#define FSR_IO (1<<4)
109#define FSR_DZ (1<<3)
110#define FSR_OF (1<<2)
111#define FSR_UF (1<<1)
112#define FSR_DO (1<<0)
113
114
115
116#define PVR0_PVR_FULL_MASK 0x80000000
117#define PVR0_USE_BARREL_MASK 0x40000000
118#define PVR0_USE_DIV_MASK 0x20000000
119#define PVR0_USE_HW_MUL_MASK 0x10000000
120#define PVR0_USE_FPU_MASK 0x08000000
121#define PVR0_USE_EXC_MASK 0x04000000
122#define PVR0_USE_ICACHE_MASK 0x02000000
123#define PVR0_USE_DCACHE_MASK 0x01000000
124#define PVR0_USE_MMU_MASK 0x00800000
125#define PVR0_USE_BTC 0x00400000
126#define PVR0_ENDI_MASK 0x00200000
127#define PVR0_FAULT 0x00100000
128#define PVR0_VERSION_MASK 0x0000FF00
129#define PVR0_USER1_MASK 0x000000FF
130#define PVR0_SPROT_MASK 0x00000001
131
132#define PVR0_VERSION_SHIFT 8
133
134
135#define PVR1_USER2_MASK 0xFFFFFFFF
136
137
138#define PVR2_D_OPB_MASK 0x80000000
139#define PVR2_D_LMB_MASK 0x40000000
140#define PVR2_I_OPB_MASK 0x20000000
141#define PVR2_I_LMB_MASK 0x10000000
142#define PVR2_INTERRUPT_IS_EDGE_MASK 0x08000000
143#define PVR2_EDGE_IS_POSITIVE_MASK 0x04000000
144#define PVR2_D_PLB_MASK 0x02000000
145#define PVR2_I_PLB_MASK 0x01000000
146#define PVR2_INTERCONNECT 0x00800000
147#define PVR2_USE_EXTEND_FSL 0x00080000
148#define PVR2_USE_FSL_EXC 0x00040000
149#define PVR2_USE_MSR_INSTR 0x00020000
150#define PVR2_USE_PCMP_INSTR 0x00010000
151#define PVR2_AREA_OPTIMISED 0x00008000
152#define PVR2_USE_BARREL_MASK 0x00004000
153#define PVR2_USE_DIV_MASK 0x00002000
154#define PVR2_USE_HW_MUL_MASK 0x00001000
155#define PVR2_USE_FPU_MASK 0x00000800
156#define PVR2_USE_MUL64_MASK 0x00000400
157#define PVR2_USE_FPU2_MASK 0x00000200
158#define PVR2_USE_IPLBEXC 0x00000100
159#define PVR2_USE_DPLBEXC 0x00000080
160#define PVR2_OPCODE_0x0_ILL_MASK 0x00000040
161#define PVR2_UNALIGNED_EXC_MASK 0x00000020
162#define PVR2_ILL_OPCODE_EXC_MASK 0x00000010
163#define PVR2_IOPB_BUS_EXC_MASK 0x00000008
164#define PVR2_DOPB_BUS_EXC_MASK 0x00000004
165#define PVR2_DIV_ZERO_EXC_MASK 0x00000002
166#define PVR2_FPU_EXC_MASK 0x00000001
167
168
169#define PVR3_DEBUG_ENABLED_MASK 0x80000000
170#define PVR3_NUMBER_OF_PC_BRK_MASK 0x1E000000
171#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
172#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
173#define PVR3_FSL_LINKS_MASK 0x00000380
174
175
176#define PVR4_USE_ICACHE_MASK 0x80000000
177#define PVR4_ICACHE_ADDR_TAG_BITS_MASK 0x7C000000
178#define PVR4_ICACHE_USE_FSL_MASK 0x02000000
179#define PVR4_ICACHE_ALLOW_WR_MASK 0x01000000
180#define PVR4_ICACHE_LINE_LEN_MASK 0x00E00000
181#define PVR4_ICACHE_BYTE_SIZE_MASK 0x001F0000
182
183
184#define PVR5_USE_DCACHE_MASK 0x80000000
185#define PVR5_DCACHE_ADDR_TAG_BITS_MASK 0x7C000000
186#define PVR5_DCACHE_USE_FSL_MASK 0x02000000
187#define PVR5_DCACHE_ALLOW_WR_MASK 0x01000000
188#define PVR5_DCACHE_LINE_LEN_MASK 0x00E00000
189#define PVR5_DCACHE_BYTE_SIZE_MASK 0x001F0000
190#define PVR5_DCACHE_WRITEBACK_MASK 0x00004000
191
192
193#define PVR6_ICACHE_BASEADDR_MASK 0xFFFFFFFF
194
195
196#define PVR7_ICACHE_HIGHADDR_MASK 0xFFFFFFFF
197
198
199#define PVR8_DCACHE_BASEADDR_MASK 0xFFFFFFFF
200
201
202#define PVR9_DCACHE_HIGHADDR_MASK 0xFFFFFFFF
203
204
205#define PVR10_TARGET_FAMILY_MASK 0xFF000000
206
207
208#define PVR11_USE_MMU 0xC0000000
209#define PVR11_MMU_ITLB_SIZE 0x38000000
210#define PVR11_MMU_DTLB_SIZE 0x07000000
211#define PVR11_MMU_TLB_ACCESS 0x00C00000
212#define PVR11_MMU_ZONES 0x003E0000
213
214#define PVR11_MSR_RESET_VALUE_MASK 0x000007FF
215
216#define C_PVR_NONE 0
217#define C_PVR_BASIC 1
218#define C_PVR_FULL 2
219
220
221
222
223#define CC_GE 5
224#define CC_GT 4
225#define CC_LE 3
226#define CC_LT 2
227#define CC_NE 1
228#define CC_EQ 0
229
230#define NB_MMU_MODES 3
231#undef NB_MEM_ATTR
232#define NB_MEM_ATTR 1
233
234#define STREAM_EXCEPTION (1 << 0)
235#define STREAM_ATOMIC (1 << 1)
236#define STREAM_TEST (1 << 2)
237#define STREAM_CONTROL (1 << 3)
238#define STREAM_NONBLOCK (1 << 4)
239
240struct CPUMBState {
241 uint32_t debug;
242 uint32_t btaken;
243 uint32_t btarget;
244 uint32_t bimm;
245
246 uint32_t imm;
247 uint32_t regs[33];
248 uint32_t sregs[24];
249 float_status fp_status;
250
251 uint32_t slr, shr;
252
253
254#define RES_ADDR_NONE 0xffffffff
255 uint32_t res_addr;
256 uint32_t res_val;
257
258
259#define IMM_FLAG 4
260#define MSR_EE_FLAG (1 << 8)
261#define DRTI_FLAG (1 << 16)
262#define DRTE_FLAG (1 << 17)
263#define DRTB_FLAG (1 << 18)
264#define D_FLAG (1 << 19)
265
266#define IFLAGS_TB_MASK (D_FLAG | IMM_FLAG | DRTI_FLAG | DRTE_FLAG | DRTB_FLAG)
267 uint32_t iflags;
268 uint32_t wakeup;
269
270#if !defined(CONFIG_USER_ONLY)
271
272 struct microblaze_mmu mmu;
273#endif
274
275
276 struct {} end_reset_fields;
277
278 CPU_COMMON
279
280
281
282 struct {
283 uint32_t regs[16];
284 } pvr;
285
286
287
288 MemTxAttrs *memattr_p;
289};
290
291
292
293
294
295
296
297struct MicroBlazeCPU {
298
299 CPUState parent_obj;
300
301
302 qemu_irq mb_sleep;
303
304
305 struct {
306 bool stackprot;
307 uint32_t base_vectors;
308 uint8_t use_fpu;
309 uint8_t use_hw_mul;
310 bool use_barrel;
311 bool use_div;
312 bool use_msr_instr;
313 bool use_pcmp_instr;
314 bool use_mmu;
315 bool dcache_writeback;
316 bool endi;
317 char *version;
318 uint8_t pvr;
319 } cfg;
320
321 CPUMBState env;
322};
323
324static inline MicroBlazeCPU *mb_env_get_cpu(CPUMBState *env)
325{
326 return container_of(env, MicroBlazeCPU, env);
327}
328
329#define ENV_GET_CPU(e) CPU(mb_env_get_cpu(e))
330
331#define ENV_OFFSET offsetof(MicroBlazeCPU, env)
332
333void mb_cpu_do_interrupt(CPUState *cs);
334bool mb_cpu_exec_interrupt(CPUState *cs, int int_req);
335void mb_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
336 int flags);
337hwaddr mb_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
338int mb_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
339int mb_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
340
341void mb_tcg_init(void);
342
343
344
345int cpu_mb_signal_handler(int host_signum, void *pinfo,
346 void *puc);
347
348
349#define TARGET_PAGE_BITS 12
350
351#define TARGET_PHYS_ADDR_SPACE_BITS 32
352#define TARGET_VIRT_ADDR_SPACE_BITS 32
353
354#define cpu_init(cpu_model) cpu_generic_init(TYPE_MICROBLAZE_CPU, cpu_model)
355
356#define cpu_signal_handler cpu_mb_signal_handler
357
358
359#define MMU_MODE0_SUFFIX _nommu
360#define MMU_MODE1_SUFFIX _kernel
361#define MMU_MODE2_SUFFIX _user
362#define MMU_NOMMU_IDX 0
363#define MMU_KERNEL_IDX 1
364#define MMU_USER_IDX 2
365
366
367static inline int cpu_mmu_index (CPUMBState *env, bool ifetch)
368{
369
370 if (!(env->sregs[SR_MSR] & MSR_VM))
371 return MMU_NOMMU_IDX;
372
373 if (env->sregs[SR_MSR] & MSR_UM)
374 return MMU_USER_IDX;
375 return MMU_KERNEL_IDX;
376}
377
378int mb_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
379 int mmu_idx);
380
381#include "exec/cpu-all.h"
382
383static inline void cpu_get_tb_cpu_state(CPUMBState *env, target_ulong *pc,
384 target_ulong *cs_base, uint32_t *flags)
385{
386 *pc = env->sregs[SR_PC];
387 *cs_base = 0;
388 *flags = (env->iflags & IFLAGS_TB_MASK) |
389 (env->sregs[SR_MSR] & (MSR_UM | MSR_VM | MSR_EE));
390}
391
392#if !defined(CONFIG_USER_ONLY)
393void mb_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
394 bool is_write, bool is_exec, int is_asi,
395 unsigned size);
396#endif
397
398#endif
399